Can ata functions be turned off or altered

I am running a redhawk kernal on redhat 4.2.1.
I have an ethernet communications problem that seems to be related to a broadcast AOE message that is related to the linux box, going out on the network looking for shared hard drives. There are no shared hard drives on this LAN. My linux box doesn't care about any other machines hard drives, nor do I want any other device to access my hard drive. The AOE broadcast message occurs every 60 seconds. Can I permanently disable these AOE broadcast messages or increase the period from 60 seconds to 24 hours or more??? I am running a real time process that requires tight timing on the messages going out, this 60 second hiccup is killing me. Any help will be appreciated.
Thanks

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